我使用Firebase Cloud Messaging发送推送通知.

这是我的FirebaseMessageService：

public class FireBaseMessageService extends FirebaseMessagingService {

@Override

public void onMessageReceived(RemoteMessage remoteMessage) {

Log.e("TAG", "From: " + remoteMessage.getFrom());

Log.e("TAG", "Notification Message Body: " + remoteMessage.getData().get("CardName")+" : "+remoteMessage.getData().get("CardCode"));

sendNotification(remoteMessage.getNotification().getBody());

}

private void sendNotification(String messageBody) {

Intent intent = new Intent(this, StartActivity.class);

intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,

PendingIntent.FLAG_ONE_SHOT);

Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)

.setSmallIcon(R.mipmap.ic_launcher_final)

.setContentTitle("Notification")

.setContentText(messageBody)

.setTicker("Test")

.setAutoCancel(true)

.setDefaults(Notification.DEFAULT_SOUND)

.setContentIntent(pendingIntent);

NotificationManager notificationManager =

(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());

}

}

和FirebaseInstanceServer：

public class FirebaseInstanceService extends FirebaseInstanceIdService {

@Override

public void onTokenRefresh() {

// Get updated InstanceID token.

String refreshedToken = FirebaseInstanceId.getInstance().getToken();

Log.e("TAG", "Refreshed token: " + refreshedToken);

// TODO: Implement this method to send any registration to your app's servers.

sendRegistrationToServer(refreshedToken);

}

private void sendRegistrationToServer(String token) {

// Add custom implementation, as needed.

Log.e("TAG", "Refreshed token2: " + token);

}

}

哪个在AndroidManifest中声明：

android:name=".util.notifications.FireBaseMessageService">

android:name=".util.notifications.FirebaseInstanceService">

所以问题是,当应用程序运行的代码显示得很好,通知有默认声音,但是当应用程序在前台或没有运行通知没有任何声音和代码未显示在状态栏.

为什么会发生这种情况,我该如何解决？